GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/mpegvideo.c Lines: 994 1364 72.9 %
Date: 2020-04-04 00:26:16 Branches: 459 864 53.1 %

Line Branch Exec Source
1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7
 *
8
 * This file is part of FFmpeg.
9
 *
10
 * FFmpeg is free software; you can redistribute it and/or
11
 * modify it under the terms of the GNU Lesser General Public
12
 * License as published by the Free Software Foundation; either
13
 * version 2.1 of the License, or (at your option) any later version.
14
 *
15
 * FFmpeg is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with FFmpeg; if not, write to the Free Software
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24
25
/**
26
 * @file
27
 * The simplest mpeg encoder (well, it was the simplest!).
28
 */
29
30
#include "libavutil/attributes.h"
31
#include "libavutil/avassert.h"
32
#include "libavutil/imgutils.h"
33
#include "libavutil/internal.h"
34
#include "libavutil/motion_vector.h"
35
#include "avcodec.h"
36
#include "blockdsp.h"
37
#include "h264chroma.h"
38
#include "idctdsp.h"
39
#include "internal.h"
40
#include "mathops.h"
41
#include "mpeg_er.h"
42
#include "mpegutils.h"
43
#include "mpegvideo.h"
44
#include "mpegvideodata.h"
45
#include "mjpegenc.h"
46
#include "msmpeg4.h"
47
#include "qpeldsp.h"
48
#include "thread.h"
49
#include "wmv2.h"
50
#include <limits.h>
51
52
126126
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
53
                                   int16_t *block, int n, int qscale)
54
{
55
    int i, level, nCoeffs;
56
    const uint16_t *quant_matrix;
57
58
126126
    nCoeffs= s->block_last_index[n];
59
60
126126
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
61
    /* XXX: only MPEG-1 */
62
126126
    quant_matrix = s->intra_matrix;
63
3042075
    for(i=1;i<=nCoeffs;i++) {
64
2915949
        int j= s->intra_scantable.permutated[i];
65
2915949
        level = block[j];
66
2915949
        if (level) {
67
1215436
            if (level < 0) {
68
604537
                level = -level;
69
604537
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
70
604537
                level = (level - 1) | 1;
71
604537
                level = -level;
72
            } else {
73
610899
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
74
610899
                level = (level - 1) | 1;
75
            }
76
1215436
            block[j] = level;
77
        }
78
    }
79
126126
}
80
81
285535
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
82
                                   int16_t *block, int n, int qscale)
83
{
84
    int i, level, nCoeffs;
85
    const uint16_t *quant_matrix;
86
87
285535
    nCoeffs= s->block_last_index[n];
88
89
285535
    quant_matrix = s->inter_matrix;
90
9502845
    for(i=0; i<=nCoeffs; i++) {
91
9217310
        int j= s->intra_scantable.permutated[i];
92
9217310
        level = block[j];
93
9217310
        if (level) {
94
2101549
            if (level < 0) {
95
1052132
                level = -level;
96
1052132
                level = (((level << 1) + 1) * qscale *
97
1052132
                         ((int) (quant_matrix[j]))) >> 4;
98
1052132
                level = (level - 1) | 1;
99
1052132
                level = -level;
100
            } else {
101
1049417
                level = (((level << 1) + 1) * qscale *
102
1049417
                         ((int) (quant_matrix[j]))) >> 4;
103
1049417
                level = (level - 1) | 1;
104
            }
105
2101549
            block[j] = level;
106
        }
107
    }
108
285535
}
109
110
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
111
                                   int16_t *block, int n, int qscale)
112
{
113
    int i, level, nCoeffs;
114
    const uint16_t *quant_matrix;
115
116
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
117
    else                 qscale <<= 1;
118
119
    if(s->alternate_scan) nCoeffs= 63;
120
    else nCoeffs= s->block_last_index[n];
121
122
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
123
    quant_matrix = s->intra_matrix;
124
    for(i=1;i<=nCoeffs;i++) {
125
        int j= s->intra_scantable.permutated[i];
126
        level = block[j];
127
        if (level) {
128
            if (level < 0) {
129
                level = -level;
130
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
131
                level = -level;
132
            } else {
133
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
134
            }
135
            block[j] = level;
136
        }
137
    }
138
}
139
140
1004864
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
141
                                   int16_t *block, int n, int qscale)
142
{
143
    int i, level, nCoeffs;
144
    const uint16_t *quant_matrix;
145
1004864
    int sum=-1;
146
147
1004864
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
148
1004864
    else                 qscale <<= 1;
149
150
1004864
    if(s->alternate_scan) nCoeffs= 63;
151
1004864
    else nCoeffs= s->block_last_index[n];
152
153
1004864
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
154
1004864
    sum += block[0];
155
1004864
    quant_matrix = s->intra_matrix;
156
19033337
    for(i=1;i<=nCoeffs;i++) {
157
18028473
        int j= s->intra_scantable.permutated[i];
158
18028473
        level = block[j];
159
18028473
        if (level) {
160
8890498
            if (level < 0) {
161
4472731
                level = -level;
162
4472731
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
163
4472731
                level = -level;
164
            } else {
165
4417767
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
166
            }
167
8890498
            block[j] = level;
168
8890498
            sum+=level;
169
        }
170
    }
171
1004864
    block[63]^=sum&1;
172
1004864
}
173
174
2577120
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
175
                                   int16_t *block, int n, int qscale)
176
{
177
    int i, level, nCoeffs;
178
    const uint16_t *quant_matrix;
179
2577120
    int sum=-1;
180
181
2577120
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
182
2577120
    else                 qscale <<= 1;
183
184
2577120
    if(s->alternate_scan) nCoeffs= 63;
185
2577120
    else nCoeffs= s->block_last_index[n];
186
187
2577120
    quant_matrix = s->inter_matrix;
188
65294556
    for(i=0; i<=nCoeffs; i++) {
189
62717436
        int j= s->intra_scantable.permutated[i];
190
62717436
        level = block[j];
191
62717436
        if (level) {
192
22179210
            if (level < 0) {
193
11115371
                level = -level;
194
11115371
                level = (((level << 1) + 1) * qscale *
195
11115371
                         ((int) (quant_matrix[j]))) >> 5;
196
11115371
                level = -level;
197
            } else {
198
11063839
                level = (((level << 1) + 1) * qscale *
199
11063839
                         ((int) (quant_matrix[j]))) >> 5;
200
            }
201
22179210
            block[j] = level;
202
22179210
            sum+=level;
203
        }
204
    }
205
2577120
    block[63]^=sum&1;
206
2577120
}
207
208
3363228
static void dct_unquantize_h263_intra_c(MpegEncContext *s,
209
                                  int16_t *block, int n, int qscale)
210
{
211
    int i, level, qmul, qadd;
212
    int nCoeffs;
213
214
    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
215
216
3363228
    qmul = qscale << 1;
217
218
3363228
    if (!s->h263_aic) {
219
3190032
        block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
220
3190032
        qadd = (qscale - 1) | 1;
221
    }else{
222
173196
        qadd = 0;
223
    }
224
3363228
    if(s->ac_pred)
225
68304
        nCoeffs=63;
226
    else
227
3294924
        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
228
229
120195275
    for(i=1; i<=nCoeffs; i++) {
230
116832047
        level = block[i];
231
116832047
        if (level) {
232
35700964
            if (level < 0) {
233
17877171
                level = level * qmul - qadd;
234
            } else {
235
17823793
                level = level * qmul + qadd;
236
            }
237
35700964
            block[i] = level;
238
        }
239
    }
240
3363228
}
241
242
6014662
static void dct_unquantize_h263_inter_c(MpegEncContext *s,
243
                                  int16_t *block, int n, int qscale)
244
{
245
    int i, level, qmul, qadd;
246
    int nCoeffs;
247
248
    av_assert2(s->block_last_index[n]>=0);
249
250
6014662
    qadd = (qscale - 1) | 1;
251
6014662
    qmul = qscale << 1;
252
253
6014662
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
254
255
235641304
    for(i=0; i<=nCoeffs; i++) {
256
229626642
        level = block[i];
257
229626642
        if (level) {
258
48213622
            if (level < 0) {
259
24027915
                level = level * qmul - qadd;
260
            } else {
261
24185707
                level = level * qmul + qadd;
262
            }
263
48213622
            block[i] = level;
264
        }
265
    }
266
6014662
}
267
268
269
static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
270
{
271
    while(h--)
272
        memset(dst + h*linesize, 128, 16);
273
}
274
275
static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
276
{
277
    while(h--)
278
        memset(dst + h*linesize, 128, 8);
279
}
280
281
/* init common dct for both encoder and decoder */
282
744
static av_cold int dct_init(MpegEncContext *s)
283
{
284
744
    ff_blockdsp_init(&s->bdsp, s->avctx);
285
744
    ff_h264chroma_init(&s->h264chroma, 8); //for lowres
286
744
    ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
287
744
    ff_mpegvideodsp_init(&s->mdsp);
288
744
    ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
289
290
744
    if (s->avctx->debug & FF_DEBUG_NOMC) {
291
        int i;
292
        for (i=0; i<4; i++) {
293
            s->hdsp.avg_pixels_tab[0][i] = gray16;
294
            s->hdsp.put_pixels_tab[0][i] = gray16;
295
            s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
296
297
            s->hdsp.avg_pixels_tab[1][i] = gray8;
298
            s->hdsp.put_pixels_tab[1][i] = gray8;
299
            s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
300
        }
301
    }
302
303
744
    s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
304
744
    s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
305
744
    s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
306
744
    s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
307
744
    s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
308
744
    if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
309
537
        s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
310
744
    s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
311
312
    if (HAVE_INTRINSICS_NEON)
313
        ff_mpv_common_init_neon(s);
314
315
    if (ARCH_ALPHA)
316
        ff_mpv_common_init_axp(s);
317
    if (ARCH_ARM)
318
        ff_mpv_common_init_arm(s);
319
    if (ARCH_PPC)
320
        ff_mpv_common_init_ppc(s);
321
    if (ARCH_X86)
322
744
        ff_mpv_common_init_x86(s);
323
    if (ARCH_MIPS)
324
        ff_mpv_common_init_mips(s);
325
326
744
    return 0;
327
}
328
329
1071
av_cold void ff_mpv_idct_init(MpegEncContext *s)
330
{
331
1071
    if (s->codec_id == AV_CODEC_ID_MPEG4)
332
219
        s->idsp.mpeg4_studio_profile = s->studio_profile;
333
1071
    ff_idctdsp_init(&s->idsp, s->avctx);
334
335
    /* load & permutate scantables
336
     * note: only wmv uses different ones
337
     */
338
1071
    if (s->alternate_scan) {
339
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
340
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
341
    } else {
342
1071
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
343
1071
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
344
    }
345
1071
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
346
1071
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
347
1071
}
348
349
10832
static int alloc_picture(MpegEncContext *s, Picture *pic)
350
{
351
21664
    return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, 0, 0,
352
10832
                            s->chroma_x_shift, s->chroma_y_shift, s->out_format,
353
                            s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
354
                            &s->linesize, &s->uvlinesize);
355
}
356
357
818
static int init_duplicate_context(MpegEncContext *s)
358
{
359
818
    int y_size = s->b8_stride * (2 * s->mb_height + 1);
360
818
    int c_size = s->mb_stride * (s->mb_height + 1);
361
818
    int yc_size = y_size + 2 * c_size;
362
    int i;
363
364
818
    if (s->mb_height & 1)
365
144
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
366
367
818
    s->sc.edge_emu_buffer =
368
818
    s->me.scratchpad   =
369
818
    s->me.temp         =
370
818
    s->sc.rd_scratchpad   =
371
818
    s->sc.b_scratchpad    =
372
818
    s->sc.obmc_scratchpad = NULL;
373
374
818
    if (s->encoding) {
375
194
        FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
376
                          ME_MAP_SIZE * sizeof(uint32_t), fail)
377
194
        FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
378
                          ME_MAP_SIZE * sizeof(uint32_t), fail)
379
194
        if (s->noise_reduction) {
380
4
            FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
381
                              2 * 64 * sizeof(int), fail)
382
        }
383
    }
384
818
    FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
385
818
    s->block = s->blocks[0];
386
387
10634
    for (i = 0; i < 12; i++) {
388
9816
        s->pblocks[i] = &s->block[i];
389
    }
390
391
818
    FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
392
818
    s->dpcm_direction = 0;
393
818
    FF_ALLOCZ_OR_GOTO(s->avctx, s->dpcm_macroblock, sizeof(*s->dpcm_macroblock), fail)
394
395
818
    if (s->avctx->codec_tag == AV_RL32("VCR2")) {
396
        // exchange uv
397
4
        FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
398
    }
399
400
818
    if (s->out_format == FMT_H263) {
401
        /* ac values */
402

451
        FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
403
                          yc_size * sizeof(int16_t) * 16, fail);
404
451
        s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
405
451
        s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
406
451
        s->ac_val[2] = s->ac_val[1] + c_size;
407
    }
408
409
818
    return 0;
410
fail:
411
    return -1; // free() through ff_mpv_common_end()
412
}
413
414
837
static void free_duplicate_context(MpegEncContext *s)
415
{
416
837
    if (!s)
417
        return;
418
419
837
    av_freep(&s->sc.edge_emu_buffer);
420
837
    av_freep(&s->me.scratchpad);
421
837
    s->me.temp =
422
837
    s->sc.rd_scratchpad =
423
837
    s->sc.b_scratchpad =
424
837
    s->sc.obmc_scratchpad = NULL;
425
426
837
    av_freep(&s->dct_error_sum);
427
837
    av_freep(&s->me.map);
428
837
    av_freep(&s->me.score_map);
429
837
    av_freep(&s->blocks);
430
837
    av_freep(&s->block32);
431
837
    av_freep(&s->dpcm_macroblock);
432
837
    av_freep(&s->ac_val_base);
433
837
    s->block = NULL;
434
}
435
436
8752
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
437
{
438
#define COPY(a) bak->a = src->a
439
8752
    COPY(sc.edge_emu_buffer);
440
8752
    COPY(me.scratchpad);
441
8752
    COPY(me.temp);
442
8752
    COPY(sc.rd_scratchpad);
443
8752
    COPY(sc.b_scratchpad);
444
8752
    COPY(sc.obmc_scratchpad);
445
8752
    COPY(me.map);
446
8752
    COPY(me.score_map);
447
8752
    COPY(blocks);
448
8752
    COPY(block);
449
8752
    COPY(block32);
450
8752
    COPY(dpcm_macroblock);
451
8752
    COPY(dpcm_direction);
452
8752
    COPY(start_mb_y);
453
8752
    COPY(end_mb_y);
454
8752
    COPY(me.map_generation);
455
8752
    COPY(pb);
456
8752
    COPY(dct_error_sum);
457
8752
    COPY(dct_count[0]);
458
8752
    COPY(dct_count[1]);
459
8752
    COPY(ac_val_base);
460
8752
    COPY(ac_val[0]);
461
8752
    COPY(ac_val[1]);
462
8752
    COPY(ac_val[2]);
463
#undef COPY
464
8752
}
465
466
4376
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
467
{
468
    MpegEncContext bak;
469
    int i, ret;
470
    // FIXME copy only needed parts
471
4376
    backup_duplicate_context(&bak, dst);
472
4376
    memcpy(dst, src, sizeof(MpegEncContext));
473
4376
    backup_duplicate_context(dst, &bak);
474
56888
    for (i = 0; i < 12; i++) {
475
52512
        dst->pblocks[i] = &dst->block[i];
476
    }
477
4376
    if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
478
        // exchange uv
479
        FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
480
    }
481

4412
    if (!dst->sc.edge_emu_buffer &&
482
36
        (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
483
36
                                       &dst->sc, dst->linesize)) < 0) {
484
        av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
485
               "scratch buffers.\n");
486
        return ret;
487
    }
488
4376
    return 0;
489
}
490
491
int ff_mpeg_update_thread_context(AVCodecContext *dst,
492
                                  const AVCodecContext *src)
493
{
494
    int i, ret;
495
    MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
496
497
    if (dst == src)
498
        return 0;
499
500
    av_assert0(s != s1);
501
502
    // FIXME can parameters change on I-frames?
503
    // in that case dst may need a reinit
504
    if (!s->context_initialized) {
505
        int err;
506
        memcpy(s, s1, sizeof(MpegEncContext));
507
508
        s->avctx                 = dst;
509
        s->bitstream_buffer      = NULL;
510
        s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
511
512
        if (s1->context_initialized){
513
//             s->picture_range_start  += MAX_PICTURE_COUNT;
514
//             s->picture_range_end    += MAX_PICTURE_COUNT;
515
            ff_mpv_idct_init(s);
516
            if((err = ff_mpv_common_init(s)) < 0){
517
                memset(s, 0, sizeof(MpegEncContext));
518
                s->avctx = dst;
519
                return err;
520
            }
521
        }
522
    }
523
524
    if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
525
        s->context_reinit = 0;
526
        s->height = s1->height;
527
        s->width  = s1->width;
528
        if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
529
            return ret;
530
    }
531
532
    s->avctx->coded_height  = s1->avctx->coded_height;
533
    s->avctx->coded_width   = s1->avctx->coded_width;
534
    s->avctx->width         = s1->avctx->width;
535
    s->avctx->height        = s1->avctx->height;
536
537
    s->quarter_sample       = s1->quarter_sample;
538
539
    s->coded_picture_number = s1->coded_picture_number;
540
    s->picture_number       = s1->picture_number;
541
542
    av_assert0(!s->picture || s->picture != s1->picture);
543
    if(s->picture)
544
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
545
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
546
        if (s1->picture && s1->picture[i].f->buf[0] &&
547
            (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
548
            return ret;
549
    }
550
551
#define UPDATE_PICTURE(pic)\
552
do {\
553
    ff_mpeg_unref_picture(s->avctx, &s->pic);\
554
    if (s1->pic.f && s1->pic.f->buf[0])\
555
        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
556
    else\
557
        ret = ff_update_picture_tables(&s->pic, &s1->pic);\
558
    if (ret < 0)\
559
        return ret;\
560
} while (0)
561
562
    UPDATE_PICTURE(current_picture);
563
    UPDATE_PICTURE(last_picture);
564
    UPDATE_PICTURE(next_picture);
565
566
#define REBASE_PICTURE(pic, new_ctx, old_ctx)                                 \
567
    ((pic && pic >= old_ctx->picture &&                                       \
568
      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
569
        &new_ctx->picture[pic - old_ctx->picture] : NULL)
570
571
    s->last_picture_ptr    = REBASE_PICTURE(s1->last_picture_ptr,    s, s1);
572
    s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
573
    s->next_picture_ptr    = REBASE_PICTURE(s1->next_picture_ptr,    s, s1);
574
575
    // Error/bug resilience
576
    s->next_p_frame_damaged = s1->next_p_frame_damaged;
577
    s->workaround_bugs      = s1->workaround_bugs;
578
    s->padding_bug_score    = s1->padding_bug_score;
579
580
    // MPEG-4 timing info
581
    memcpy(&s->last_time_base, &s1->last_time_base,
582
           (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
583
           (char *) &s1->last_time_base);
584
585
    // B-frame info
586
    s->max_b_frames = s1->max_b_frames;
587
    s->low_delay    = s1->low_delay;
588
    s->droppable    = s1->droppable;
589
590
    // DivX handling (doesn't work)
591
    s->divx_packed  = s1->divx_packed;
592
593
    if (s1->bitstream_buffer) {
594
        if (s1->bitstream_buffer_size +
595
            AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
596
            av_fast_malloc(&s->bitstream_buffer,
597
                           &s->allocated_bitstream_buffer_size,
598
                           s1->allocated_bitstream_buffer_size);
599
            if (!s->bitstream_buffer) {
600
                s->bitstream_buffer_size = 0;
601
                return AVERROR(ENOMEM);
602
            }
603
        }
604
        s->bitstream_buffer_size = s1->bitstream_buffer_size;
605
        memcpy(s->bitstream_buffer, s1->bitstream_buffer,
606
               s1->bitstream_buffer_size);
607
        memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
608
               AV_INPUT_BUFFER_PADDING_SIZE);
609
    }
610
611
    // linesize-dependent scratch buffer allocation
612
    if (!s->sc.edge_emu_buffer)
613
        if (s1->linesize) {
614
            if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
615
                                        &s->sc, s1->linesize) < 0) {
616
                av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
617
                       "scratch buffers.\n");
618
                return AVERROR(ENOMEM);
619
            }
620
        } else {
621
            av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
622
                   "be allocated due to unknown size.\n");
623
        }
624
625
    // MPEG-2/interlacing info
626
    memcpy(&s->progressive_sequence, &s1->progressive_sequence,
627
           (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
628
629
    if (!s1->first_field) {
630
        s->last_pict_type = s1->pict_type;
631
        if (s1->current_picture_ptr)
632
            s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
633
    }
634
635
    return 0;
636
}
637
638
/**
639
 * Set the given MpegEncContext to common defaults
640
 * (same for encoding and decoding).
641
 * The changed fields will not depend upon the
642
 * prior state of the MpegEncContext.
643
 */
644
760
void ff_mpv_common_defaults(MpegEncContext *s)
645
{
646
760
    s->y_dc_scale_table      =
647
760
    s->c_dc_scale_table      = ff_mpeg1_dc_scale_table;
648
760
    s->chroma_qscale_table   = ff_default_chroma_qscale_table;
649
760
    s->progressive_frame     = 1;
650
760
    s->progressive_sequence  = 1;
651
760
    s->picture_structure     = PICT_FRAME;
652
653
760
    s->coded_picture_number  = 0;
654
760
    s->picture_number        = 0;
655
656
760
    s->f_code                = 1;
657
760
    s->b_code                = 1;
658
659
760
    s->slice_context_count   = 1;
660
760
}
661
662
/**
663
 * Set the given MpegEncContext to defaults for decoding.
664
 * the changed fields will not depend upon
665
 * the prior state of the MpegEncContext.
666
 */
667
578
void ff_mpv_decode_defaults(MpegEncContext *s)
668
{
669
578
    ff_mpv_common_defaults(s);
670
578
}
671
672
578
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
673
{
674
578
    s->avctx           = avctx;
675
578
    s->width           = avctx->coded_width;
676
578
    s->height          = avctx->coded_height;
677
578
    s->codec_id        = avctx->codec->id;
678
578
    s->workaround_bugs = avctx->workaround_bugs;
679
680
    /* convert fourcc to upper case */
681
578
    s->codec_tag          = avpriv_toupper4(avctx->codec_tag);
682
578
}
683
684
/**
685
 * Initialize and allocates MpegEncContext fields dependent on the resolution.
686
 */
687
782
static int init_context_frame(MpegEncContext *s)
688
{
689
    int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
690
691
782
    s->mb_width   = (s->width + 15) / 16;
692
782
    s->mb_stride  = s->mb_width + 1;
693
782
    s->b8_stride  = s->mb_width * 2 + 1;
694
782
    mb_array_size = s->mb_height * s->mb_stride;
695
782
    mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
696
697
    /* set default edge pos, will be overridden
698
     * in decode_header if needed */
699
782
    s->h_edge_pos = s->mb_width * 16;
700
782
    s->v_edge_pos = s->mb_height * 16;
701
702
782
    s->mb_num     = s->mb_width * s->mb_height;
703
704
782
    s->block_wrap[0] =
705
782
    s->block_wrap[1] =
706
782
    s->block_wrap[2] =
707
782
    s->block_wrap[3] = s->b8_stride;
708
782
    s->block_wrap[4] =
709
782
    s->block_wrap[5] = s->mb_stride;
710
711
782
    y_size  = s->b8_stride * (2 * s->mb_height + 1);
712
782
    c_size  = s->mb_stride * (s->mb_height + 1);
713
782
    yc_size = y_size + 2   * c_size;
714
715
782
    if (s->mb_height & 1)
716
143
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
717
718

782
    FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
719
                      fail); // error resilience code looks cleaner with this
720
15183
    for (y = 0; y < s->mb_height; y++)
721
447168
        for (x = 0; x < s->mb_width; x++)
722
432767
            s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
723
724
782
    s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
725
726
782
    if (s->encoding) {
727
        /* Allocate MV tables */
728

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base,                 mv_table_size * 2 * sizeof(int16_t), fail)
729

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base,            mv_table_size * 2 * sizeof(int16_t), fail)
730

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base,            mv_table_size * 2 * sizeof(int16_t), fail)
731

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base,      mv_table_size * 2 * sizeof(int16_t), fail)
732

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base,      mv_table_size * 2 * sizeof(int16_t), fail)
733

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base,          mv_table_size * 2 * sizeof(int16_t), fail)
734
182
        s->p_mv_table            = s->p_mv_table_base + s->mb_stride + 1;
735
182
        s->b_forw_mv_table       = s->b_forw_mv_table_base + s->mb_stride + 1;
736
182
        s->b_back_mv_table       = s->b_back_mv_table_base + s->mb_stride + 1;
737
182
        s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
738
182
        s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
739
182
        s->b_direct_mv_table     = s->b_direct_mv_table_base + s->mb_stride + 1;
740
741
        /* Allocate MB type table */
742

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
743
744

182
        FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
745
746

182
        FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
747
                         mb_array_size * sizeof(float), fail);
748

182
        FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
749
                         mb_array_size * sizeof(float), fail);
750
751
    }
752
753
782
    if (s->codec_id == AV_CODEC_ID_MPEG4 ||
754
540
        (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
755
        /* interlaced direct mode decoding tables */
756
774
        for (i = 0; i < 2; i++) {
757
            int j, k;
758
1548
            for (j = 0; j < 2; j++) {
759
3096
                for (k = 0; k < 2; k++) {
760

2064
                    FF_ALLOCZ_OR_GOTO(s->avctx,
761
                                      s->b_field_mv_table_base[i][j][k],
762
                                      mv_table_size * 2 * sizeof(int16_t),
763
                                      fail);
764
2064
                    s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
765
2064
                                                   s->mb_stride + 1;
766
                }
767

1032
                FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
768

1032
                FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
769
1032
                s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
770
            }
771

516
            FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
772
        }
773
    }
774
782
    if (s->out_format == FMT_H263) {
775
        /* cbp values */
776

447
        FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
777
447
        s->coded_block = s->coded_block_base + s->b8_stride + 1;
778
779
        /* cbp, ac_pred, pred_dir */
780

447
        FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table     , mb_array_size * sizeof(uint8_t), fail);
781

447
        FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
782
    }
783
784

782
    if (s->h263_pred || s->h263_plus || !s->encoding) {
785
        /* dc values */
786
        // MN: we need these for error resilience of intra-frames
787

681
        FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
788
681
        s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
789
681
        s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
790
681
        s->dc_val[2] = s->dc_val[1] + c_size;
791
2500308
        for (i = 0; i < yc_size; i++)
792
2499627
            s->dc_val_base[i] = 1024;
793
    }
794
795
    /* which mb is an intra block */
796

782
    FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
797
782
    memset(s->mbintra_table, 1, mb_array_size);
798
799
    /* init macroblock skip table */
800

782
    FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
801
    // Note the + 1 is for a quicker MPEG-4 slice_end detection
802
803
782
    return ff_mpeg_er_init(s);
804
fail:
805
    return AVERROR(ENOMEM);
806
}
807
808
744
static void clear_context(MpegEncContext *s)
809
{
810
    int i, j, k;
811
812
744
    memset(&s->next_picture, 0, sizeof(s->next_picture));
813
744
    memset(&s->last_picture, 0, sizeof(s->last_picture));
814
744
    memset(&s->current_picture, 0, sizeof(s->current_picture));
815
744
    memset(&s->new_picture, 0, sizeof(s->new_picture));
816
817
744
    memset(s->thread_context, 0, sizeof(s->thread_context));
818
819
744
    s->me.map = NULL;
820
744
    s->me.score_map = NULL;
821
744
    s->dct_error_sum = NULL;
822
744
    s->block = NULL;
823
744
    s->blocks = NULL;
824
744
    s->block32 = NULL;
825
744
    memset(s->pblocks, 0, sizeof(s->pblocks));
826
744
    s->dpcm_direction = 0;
827
744
    s->dpcm_macroblock = NULL;
828
744
    s->ac_val_base = NULL;
829
744
    s->ac_val[0] =
830
744
    s->ac_val[1] =
831
744
    s->ac_val[2] =NULL;
832
744
    s->sc.edge_emu_buffer = NULL;
833
744
    s->me.scratchpad = NULL;
834
744
    s->me.temp =
835
744
    s->sc.rd_scratchpad =
836
744
    s->sc.b_scratchpad =
837
744
    s->sc.obmc_scratchpad = NULL;
838
839
840
744
    s->bitstream_buffer = NULL;
841
744
    s->allocated_bitstream_buffer_size = 0;
842
744
    s->picture          = NULL;
843
744
    s->mb_type          = NULL;
844
744
    s->p_mv_table_base  = NULL;
845
744
    s->b_forw_mv_table_base = NULL;
846
744
    s->b_back_mv_table_base = NULL;
847
744
    s->b_bidir_forw_mv_table_base = NULL;
848
744
    s->b_bidir_back_mv_table_base = NULL;
849
744
    s->b_direct_mv_table_base = NULL;
850
744
    s->p_mv_table            = NULL;
851
744
    s->b_forw_mv_table       = NULL;
852
744
    s->b_back_mv_table       = NULL;
853
744
    s->b_bidir_forw_mv_table = NULL;
854
744
    s->b_bidir_back_mv_table = NULL;
855
744
    s->b_direct_mv_table     = NULL;
856
2232
    for (i = 0; i < 2; i++) {
857
4464
        for (j = 0; j < 2; j++) {
858
8928
            for (k = 0; k < 2; k++) {
859
5952
                s->b_field_mv_table_base[i][j][k] = NULL;
860
5952
                s->b_field_mv_table[i][j][k] = NULL;
861
            }
862
2976
            s->b_field_select_table[i][j] = NULL;
863
2976
            s->p_field_mv_table_base[i][j] = NULL;
864
2976
            s->p_field_mv_table[i][j] = NULL;
865
        }
866
1488
        s->p_field_select_table[i] = NULL;
867
    }
868
869
744
    s->dc_val_base = NULL;
870
744
    s->coded_block_base = NULL;
871
744
    s->mbintra_table = NULL;
872
744
    s->cbp_table = NULL;
873
744
    s->pred_dir_table = NULL;
874
875
744
    s->mbskip_table = NULL;
876
877
744
    s->er.error_status_table = NULL;
878
744
    s->er.er_temp_buffer = NULL;
879
744
    s->mb_index2xy = NULL;
880
744
    s->lambda_table = NULL;
881
882
744
    s->cplx_tab = NULL;
883
744
    s->bits_tab = NULL;
884
744
}
885
886
/**
887
 * init common structure for both encoder and decoder.
888
 * this assumes that some variables like width/height are already set
889
 */
890
744
av_cold int ff_mpv_common_init(MpegEncContext *s)
891
{
892
    int i, ret;
893
744
    int nb_slices = (HAVE_THREADS &&
894
744
                     s->avctx->active_thread_type & FF_THREAD_SLICE) ?
895
744
                    s->avctx->thread_count : 1;
896
897
744
    clear_context(s);
898
899

744
    if (s->encoding && s->avctx->slices)
900
12
        nb_slices = s->avctx->slices;
901
902

744
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
903
129
        s->mb_height = (s->height + 31) / 32 * 2;
904
    else
905
615
        s->mb_height = (s->height + 15) / 16;
906
907
744
    if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
908
        av_log(s->avctx, AV_LOG_ERROR,
909
               "decoding to AV_PIX_FMT_NONE is not supported.\n");
910
        return -1;
911
    }
912
913

744
    if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
914
        int max_slices;
915
        if (s->mb_height)
916
            max_slices = FFMIN(MAX_THREADS, s->mb_height);
917
        else
918
            max_slices = MAX_THREADS;
919
        av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
920
               " reducing to %d\n", nb_slices, max_slices);
921
        nb_slices = max_slices;
922
    }
923
924

1473
    if ((s->width || s->height) &&
925
729
        av_image_check_size(s->width, s->height, 0, s->avctx))
926
        return -1;
927
928
744
    dct_init(s);
929
930
    /* set chroma shifts */
931
744
    ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
932
                                           &s->chroma_x_shift,
933
                                           &s->chroma_y_shift);
934
744
    if (ret)
935
        return ret;
936
937
744
    FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
938
                      MAX_PICTURE_COUNT * sizeof(Picture), fail);
939
27528
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
940
26784
        s->picture[i].f = av_frame_alloc();
941
26784
        if (!s->picture[i].f)
942
            goto fail;
943
    }
944
744
    s->next_picture.f = av_frame_alloc();
945
744
    if (!s->next_picture.f)
946
        goto fail;
947
744
    s->last_picture.f = av_frame_alloc();
948
744
    if (!s->last_picture.f)
949
        goto fail;
950
744
    s->current_picture.f = av_frame_alloc();
951
744
    if (!s->current_picture.f)
952
        goto fail;
953
744
    s->new_picture.f = av_frame_alloc();
954
744
    if (!s->new_picture.f)
955
        goto fail;
956
957
744
    if (init_context_frame(s))
958
        goto fail;
959
960
744
    s->parse_context.state = -1;
961
962
744
    s->context_initialized = 1;
963
744
    memset(s->thread_context, 0, sizeof(s->thread_context));
964
744
    s->thread_context[0]   = s;
965
966
//     if (s->width && s->height) {
967
744
    if (nb_slices > 1) {
968
66
        for (i = 0; i < nb_slices; i++) {
969
51
            if (i) {
970
36
                s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
971
36
                if (!s->thread_context[i])
972
                    goto fail;
973
            }
974
51
            if (init_duplicate_context(s->thread_context[i]) < 0)
975
                goto fail;
976
51
            s->thread_context[i]->start_mb_y =
977
51
                (s->mb_height * (i) + nb_slices / 2) / nb_slices;
978
51
            s->thread_context[i]->end_mb_y   =
979
51
                (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
980
        }
981
    } else {
982
729
        if (init_duplicate_context(s) < 0)
983
            goto fail;
984
729
        s->start_mb_y = 0;
985
729
        s->end_mb_y   = s->mb_height;
986
    }
987
744
    s->slice_context_count = nb_slices;
988
//     }
989
990
744
    return 0;
991
 fail:
992
    ff_mpv_common_end(s);
993
    return -1;
994
}
995
996
/**
997
 * Frees and resets MpegEncContext fields depending on the resolution.
998
 * Is used during resolution changes to avoid a full reinitialization of the
999
 * codec.
1000
 */
1001
801
static void free_context_frame(MpegEncContext *s)
1002
{
1003
    int i, j, k;
1004
1005
801
    av_freep(&s->mb_type);
1006
801
    av_freep(&s->p_mv_table_base);
1007
801
    av_freep(&s->b_forw_mv_table_base);
1008
801
    av_freep(&s->b_back_mv_table_base);
1009
801
    av_freep(&s->b_bidir_forw_mv_table_base);
1010
801
    av_freep(&s->b_bidir_back_mv_table_base);
1011
801
    av_freep(&s->b_direct_mv_table_base);
1012
801
    s->p_mv_table            = NULL;
1013
801
    s->b_forw_mv_table       = NULL;
1014
801
    s->b_back_mv_table       = NULL;
1015
801
    s->b_bidir_forw_mv_table = NULL;
1016
801
    s->b_bidir_back_mv_table = NULL;
1017
801
    s->b_direct_mv_table     = NULL;
1018
2403
    for (i = 0; i < 2; i++) {
1019
4806
        for (j = 0; j < 2; j++) {
1020
9612
            for (k = 0; k < 2; k++) {
1021
6408
                av_freep(&s->b_field_mv_table_base[i][j][k]);
1022
6408
                s->b_field_mv_table[i][j][k] = NULL;
1023
            }
1024
3204
            av_freep(&s->b_field_select_table[i][j]);
1025
3204
            av_freep(&s->p_field_mv_table_base[i][j]);
1026
3204
            s->p_field_mv_table[i][j] = NULL;
1027
        }
1028
1602
        av_freep(&s->p_field_select_table[i]);
1029
    }
1030
1031
801
    av_freep(&s->dc_val_base);
1032
801
    av_freep(&s->coded_block_base);
1033
801
    av_freep(&s->mbintra_table);
1034
801
    av_freep(&s->cbp_table);
1035
801
    av_freep(&s->pred_dir_table);
1036
1037
801
    av_freep(&s->mbskip_table);
1038
1039
801
    av_freep(&s->er.error_status_table);
1040
801
    av_freep(&s->er.er_temp_buffer);
1041
801
    av_freep(&s->mb_index2xy);
1042
801
    av_freep(&s->lambda_table);
1043
1044
801
    av_freep(&s->cplx_tab);
1045
801
    av_freep(&s->bits_tab);
1046
1047
801
    s->linesize = s->uvlinesize = 0;
1048
801
}
1049
1050
38
int ff_mpv_common_frame_size_change(MpegEncContext *s)
1051
{
1052
38
    int i, err = 0;
1053
1054
38
    if (!s->context_initialized)
1055
        return AVERROR(EINVAL);
1056
1057
38
    if (s->slice_context_count > 1) {
1058
        for (i = 0; i < s->slice_context_count; i++) {
1059
            free_duplicate_context(s->thread_context[i]);
1060
        }
1061
        for (i = 1; i < s->slice_context_count; i++) {
1062
            av_freep(&s->thread_context[i]);
1063
        }
1064
    } else
1065
38
        free_duplicate_context(s);
1066
1067
38
    free_context_frame(s);
1068
1069
38
    if (s->picture)
1070
1406
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1071
1368
                s->picture[i].needs_realloc = 1;
1072
        }
1073
1074
38
    s->last_picture_ptr         =
1075
38
    s->next_picture_ptr         =
1076
38
    s->current_picture_ptr      = NULL;
1077
1078
    // init
1079

38
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1080
        s->mb_height = (s->height + 31) / 32 * 2;
1081
    else
1082
38
        s->mb_height = (s->height + 15) / 16;
1083
1084

76
    if ((s->width || s->height) &&
1085
38
        (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1086
        goto fail;
1087
1088
38
    if ((err = init_context_frame(s)))
1089
        goto fail;
1090
1091
38
    memset(s->thread_context, 0, sizeof(s->thread_context));
1092
38
    s->thread_context[0]   = s;
1093
1094

38
    if (s->width && s->height) {
1095
38
        int nb_slices = s->slice_context_count;
1096
38
        if (nb_slices > 1) {
1097
            for (i = 0; i < nb_slices; i++) {
1098
                if (i) {
1099
                    s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1100
                    if (!s->thread_context[i]) {
1101
                        err = AVERROR(ENOMEM);
1102
                        goto fail;
1103
                    }
1104
                }
1105
                if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1106
                    goto fail;
1107
                s->thread_context[i]->start_mb_y =
1108
                    (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1109
                s->thread_context[i]->end_mb_y   =
1110
                    (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1111
            }
1112
        } else {
1113
38
            err = init_duplicate_context(s);
1114
38
            if (err < 0)
1115
                goto fail;
1116
38
            s->start_mb_y = 0;
1117
38
            s->end_mb_y   = s->mb_height;
1118
        }
1119
38
        s->slice_context_count = nb_slices;
1120
    }
1121
1122
38
    return 0;
1123
 fail:
1124
    ff_mpv_common_end(s);
1125
    return err;
1126
}
1127
1128
/* init common structure for both encoder and decoder */
1129
763
void ff_mpv_common_end(MpegEncContext *s)
1130
{
1131
    int i;
1132
1133
763
    if (!s)
1134
        return ;
1135
1136
763
    if (s->slice_context_count > 1) {
1137
66
        for (i = 0; i < s->slice_context_count; i++) {
1138
51
            free_duplicate_context(s->thread_context[i]);
1139
        }
1140
51
        for (i = 1; i < s->slice_context_count; i++) {
1141
36
            av_freep(&s->thread_context[i]);
1142
        }
1143
15
        s->slice_context_count = 1;
1144
748
    } else free_duplicate_context(s);
1145
1146
763
    av_freep(&s->parse_context.buffer);
1147
763
    s->parse_context.buffer_size = 0;
1148
1149
763
    av_freep(&s->bitstream_buffer);
1150
763
    s->allocated_bitstream_buffer_size = 0;
1151
1152
763
    if (s->picture) {
1153
27528
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1154
26784
            ff_free_picture_tables(&s->picture[i]);
1155
26784
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1156
26784
            av_frame_free(&s->picture[i].f);
1157
        }
1158
    }
1159
763
    av_freep(&s->picture);
1160
763
    ff_free_picture_tables(&s->last_picture);
1161
763
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1162
763
    av_frame_free(&s->last_picture.f);
1163
763
    ff_free_picture_tables(&s->current_picture);
1164
763
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1165
763
    av_frame_free(&s->current_picture.f);
1166
763
    ff_free_picture_tables(&s->next_picture);
1167
763
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1168
763
    av_frame_free(&s->next_picture.f);
1169
763
    ff_free_picture_tables(&s->new_picture);
1170
763
    ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1171
763
    av_frame_free(&s->new_picture.f);
1172
1173
763
    free_context_frame(s);
1174
1175
763
    s->context_initialized      = 0;
1176
763
    s->last_picture_ptr         =
1177
763
    s->next_picture_ptr         =
1178
763
    s->current_picture_ptr      = NULL;
1179
763
    s->linesize = s->uvlinesize = 0;
1180
}
1181
1182
1183
static void gray_frame(AVFrame *frame)
1184
{
1185
    int i, h_chroma_shift, v_chroma_shift;
1186
1187
    av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1188
1189
    for(i=0; i<frame->height; i++)
1190
        memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1191
    for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1192
        memset(frame->data[1] + frame->linesize[1]*i,
1193
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1194
        memset(frame->data[2] + frame->linesize[2]*i,
1195
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1196
    }
1197
}
1198
1199
/**
1200
 * generic function called after decoding
1201
 * the header and before a frame is decoded.
1202
 */
1203
10826
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1204
{
1205
    int i, ret;
1206
    Picture *pic;
1207
10826
    s->mb_skipped = 0;
1208
1209
10826
    if (!ff_thread_can_start_frame(avctx)) {
1210
        av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1211
        return -1;
1212
    }
1213
1214
    /* mark & release old frames */
1215

10826
    if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1216
7861
        s->last_picture_ptr != s->next_picture_ptr &&
1217
7861
        s->last_picture_ptr->f->buf[0]) {
1218
7861
        ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1219
    }
1220
1221
    /* release forgotten pictures */
1222
    /* if (MPEG-124 / H.263) */
1223
400562
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1224
389736
        if (&s->picture[i] != s->last_picture_ptr &&
1225
379406
            &s->picture[i] != s->next_picture_ptr &&
1226

368873
            s->picture[i].reference && !s->picture[i].needs_realloc) {
1227
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1228
        }
1229
    }
1230
1231
10826
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1232
10826
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1233
10826
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1234
1235
    /* release non reference frames */
1236
400562
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1237
389736
        if (!s->picture[i].reference)
1238
376714
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1239
    }
1240
1241

10826
    if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1242
        // we already have an unused image
1243
        // (maybe it was set before reading the header)
1244
5977
        pic = s->current_picture_ptr;
1245
    } else {
1246
4849
        i   = ff_find_unused_picture(s->avctx, s->picture, 0);
1247
4849
        if (i < 0) {
1248
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1249
            return i;
1250
        }
1251
4849
        pic = &s->picture[i];
1252
    }
1253
1254
10826
    pic->reference = 0;
1255
10826
    if (!s->droppable) {
1256
10826
        if (s->pict_type != AV_PICTURE_TYPE_B)
1257
8357
            pic->reference = 3;
1258
    }
1259
1260
10826
    pic->f->coded_picture_number = s->coded_picture_number++;
1261
1262
10826
    if (alloc_picture(s, pic) < 0)
1263
        return -1;
1264
1265
10826
    s->current_picture_ptr = pic;
1266
    // FIXME use only the vars from current_pic
1267
10826
    s->current_picture_ptr->f->top_field_first = s->top_field_first;
1268
10826
    if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1269
10346
        s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1270
3487
        if (s->picture_structure != PICT_FRAME)
1271
602
            s->current_picture_ptr->f->top_field_first =
1272
602
                (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1273
    }
1274
12728
    s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1275
1902
                                                 !s->progressive_sequence;
1276
10826
    s->current_picture_ptr->field_picture      =  s->picture_structure != PICT_FRAME;
1277
1278
10826
    s->current_picture_ptr->f->pict_type = s->pict_type;
1279
    // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1280
    //     s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1281
10826
    s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1282
1283
10826
    if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1284
                                   s->current_picture_ptr)) < 0)
1285
        return ret;
1286
1287
10826
    if (s->pict_type != AV_PICTURE_TYPE_B) {
1288
8357
        s->last_picture_ptr = s->next_picture_ptr;
1289
8357
        if (!s->droppable)
1290
8357
            s->next_picture_ptr = s->current_picture_ptr;
1291
    }
1292
    ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1293
            s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1294
            s->last_picture_ptr    ? s->last_picture_ptr->f->data[0]    : NULL,
1295
            s->next_picture_ptr    ? s->next_picture_ptr->f->data[0]    : NULL,
1296
            s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1297
            s->pict_type, s->droppable);
1298
1299

10826
    if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1300
293
        (s->pict_type != AV_PICTURE_TYPE_I)) {
1301
        int h_chroma_shift, v_chroma_shift;
1302
6
        av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1303
                                         &h_chroma_shift, &v_chroma_shift);
1304

6
        if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1305
            av_log(avctx, AV_LOG_DEBUG,
1306
                   "allocating dummy last picture for B frame\n");
1307
6
        else if (s->pict_type != AV_PICTURE_TYPE_I)
1308
6
            av_log(avctx, AV_LOG_ERROR,
1309
                   "warning: first frame is no keyframe\n");
1310
1311
        /* Allocate a dummy frame */
1312
6
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1313
6
        if (i < 0) {
1314
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1315
            return i;
1316
        }
1317
6
        s->last_picture_ptr = &s->picture[i];
1318
1319
6
        s->last_picture_ptr->reference   = 3;
1320
6
        s->last_picture_ptr->f->key_frame = 0;
1321
6
        s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1322
1323
6
        if (alloc_picture(s, s->last_picture_ptr) < 0) {
1324
            s->last_picture_ptr = NULL;
1325
            return -1;
1326
        }
1327
1328
6
        if (!avctx->hwaccel) {
1329
1734
            for(i=0; i<avctx->height; i++)
1330
1728
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1331
1728
                       0x80, avctx->width);
1332
6
            if (s->last_picture_ptr->f->data[2]) {
1333
870
                for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1334
864
                    memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1335
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1336
864
                    memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1337
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1338
                }
1339
            }
1340
1341

6
            if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1342
                for(i=0; i<avctx->height; i++)
1343
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1344
            }
1345
        }
1346
1347
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1348
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1349
    }
1350

10826
    if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1351
        s->pict_type == AV_PICTURE_TYPE_B) {
1352
        /* Allocate a dummy frame */
1353
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1354
        if (i < 0) {
1355
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1356
            return i;
1357
        }
1358
        s->next_picture_ptr = &s->picture[i];
1359
1360
        s->next_picture_ptr->reference   = 3;
1361
        s->next_picture_ptr->f->key_frame = 0;
1362
        s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1363
1364
        if (alloc_picture(s, s->next_picture_ptr) < 0) {
1365
            s->next_picture_ptr = NULL;
1366
            return -1;
1367
        }
1368
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1369
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1370
    }
1371
1372
#if 0 // BUFREF-FIXME
1373
    memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1374
    memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1375
#endif
1376
10826
    if (s->last_picture_ptr) {
1377

21078
        if (s->last_picture_ptr->f->buf[0] &&
1378
10539
            (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1379
                                       s->last_picture_ptr)) < 0)
1380
            return ret;
1381
    }
1382
10826
    if (s->next_picture_ptr) {
1383

21652
        if (s->next_picture_ptr->f->buf[0] &&
1384
10826
            (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1385
                                       s->next_picture_ptr)) < 0)
1386
            return ret;
1387
    }
1388
1389

10826
    av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1390
                                                 s->last_picture_ptr->f->buf[0]));
1391
1392
10826
    if (s->picture_structure!= PICT_FRAME) {
1393
        int i;
1394
3010
        for (i = 0; i < 4; i++) {
1395
2408
            if (s->picture_structure == PICT_BOTTOM_FIELD) {
1396
2404
                s->current_picture.f->data[i] +=
1397
2404
                    s->current_picture.f->linesize[i];
1398
            }
1399
2408
            s->current_picture.f->linesize[i] *= 2;
1400
2408
            s->last_picture.f->linesize[i]    *= 2;
1401
2408
            s->next_picture.f->linesize[i]    *= 2;
1402
        }
1403
    }
1404
1405
    /* set dequantizer, we can't do it during init as
1406
     * it might change for MPEG-4 and we can't do it in the header
1407
     * decode as init is not called for MPEG-4 there yet */
1408

10826
    if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1409
3047
        s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1410
3047
        s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1411

7779
    } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1412
7299
        s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1413
7299
        s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1414
    } else {
1415
480
        s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1416
480
        s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1417
    }
1418
1419
10826
    if (s->avctx->debug & FF_DEBUG_NOMC) {
1420
        gray_frame(s->current_picture_ptr->f);
1421
    }
1422
1423
10826
    return 0;
1424
}
1425
1426
/* called after a frame has been decoded. */
1427
10826
void ff_mpv_frame_end(MpegEncContext *s)
1428
{
1429
10826
    emms_c();
1430
1431
10826
    if (s->current_picture.reference)
1432
8357
        ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1433
10826
}
1434
1435
10646
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1436
{
1437
10646
    ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1438
10646
                         p->qscale_table, p->motion_val, &s->low_delay,
1439
                         s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1440
10646
}
1441
1442
9878
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1443
{
1444
9878
    AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1445
9878
    int offset = 2*s->mb_stride + 1;
1446
9878
    if(!ref)
1447
        return AVERROR(ENOMEM);
1448
9878
    av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1449
9878
    ref->size -= offset;
1450
9878
    ref->data += offset;
1451
9878
    return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1452
}
1453
1454
126300
static inline int hpel_motion_lowres(MpegEncContext *s,
1455
                                     uint8_t *dest, uint8_t *src,
1456
                                     int field_based, int field_select,
1457
                                     int src_x, int src_y,
1458
                                     int width, int height, ptrdiff_t stride,
1459
                                     int h_edge_pos, int v_edge_pos,
1460
                                     int w, int h, h264_chroma_mc_func *pix_op,
1461
                                     int motion_x, int motion_y)
1462
{
1463
126300
    const int lowres   = s->avctx->lowres;
1464
126300
    const int op_index = FFMIN(lowres, 3);
1465
126300
    const int s_mask   = (2 << lowres) - 1;
1466
126300
    int emu = 0;
1467
    int sx, sy;
1468
1469
126300
    if (s->quarter_sample) {
1470
        motion_x /= 2;
1471
        motion_y /= 2;
1472
    }
1473
1474
126300
    sx = motion_x & s_mask;
1475
126300
    sy = motion_y & s_mask;
1476
126300
    src_x += motion_x >> lowres + 1;
1477
126300
    src_y += motion_y >> lowres + 1;
1478
1479
126300
    src   += src_y * stride + src_x;
1480
1481
126300
    if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w,                 0) ||
1482
126300
        (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1483
298
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1484
                                 s->linesize, s->linesize,
1485
298
                                 w + 1, (h + 1) << field_based,
1486
                                 src_x, src_y   << field_based,
1487
                                 h_edge_pos, v_edge_pos);
1488
298
        src = s->sc.edge_emu_buffer;
1489
298
        emu = 1;
1490
    }
1491
1492
126300
    sx = (sx << 2) >> lowres;
1493
126300
    sy = (sy << 2) >> lowres;
1494
126300
    if (field_select)
1495
        src += s->linesize;
1496
126300
    pix_op[op_index](dest, src, stride, h, sx, sy);
1497
126300
    return emu;
1498
}
1499
1500
/* apply one mpeg motion vector to the three components */
1501
24814
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1502
                                                uint8_t *dest_y,
1503
                                                uint8_t *dest_cb,
1504
                                                uint8_t *dest_cr,
1505
                                                int field_based,
1506
                                                int bottom_field,
1507
                                                int field_select,
1508
                                                uint8_t **ref_picture,
1509
                                                h264_chroma_mc_func *pix_op,
1510
                                                int motion_x, int motion_y,
1511
                                                int h, int mb_y)
1512
{
1513
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1514
    int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1515
    ptrdiff_t uvlinesize, linesize;
1516
24814
    const int lowres     = s->avctx->lowres;
1517
24814
    const int op_index   = FFMIN(lowres-1+s->chroma_x_shift, 3);
1518
24814
    const int block_s    = 8>>lowres;
1519
24814
    const int s_mask     = (2 << lowres) - 1;
1520
24814
    const int h_edge_pos = s->h_edge_pos >> lowres;
1521
24814
    const int v_edge_pos = s->v_edge_pos >> lowres;
1522
24814
    linesize   = s->current_picture.f->linesize[0] << field_based;
1523
24814
    uvlinesize = s->current_picture.f->linesize[1] << field_based;
1524
1525
    // FIXME obviously not perfect but qpel will not work in lowres anyway
1526
24814
    if (s->quarter_sample) {
1527
        motion_x /= 2;
1528
        motion_y /= 2;
1529
    }
1530
1531
24814
    if(field_based){
1532
        motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1533
    }
1534
1535
24814
    sx = motion_x & s_mask;
1536
24814
    sy = motion_y & s_mask;
1537
24814
    src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1538
24814
    src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1539
1540
24814
    if (s->out_format == FMT_H263) {
1541
24814
        uvsx    = ((motion_x >> 1) & s_mask) | (sx & 1);
1542
24814
        uvsy    = ((motion_y >> 1) & s_mask) | (sy & 1);
1543
24814
        uvsrc_x = src_x >> 1;
1544
24814
        uvsrc_y = src_y >> 1;
1545
    } else if (s->out_format == FMT_H261) {
1546
        // even chroma mv's are full pel in H261
1547
        mx      = motion_x / 4;
1548
        my      = motion_y / 4;
1549
        uvsx    = (2 * mx) & s_mask;
1550
        uvsy    = (2 * my) & s_mask;
1551
        uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1552
        uvsrc_y =    mb_y * block_s + (my >> lowres);
1553
    } else {
1554
        if(s->chroma_y_shift){
1555
            mx      = motion_x / 2;
1556
            my      = motion_y / 2;
1557
            uvsx    = mx & s_mask;
1558
            uvsy    = my & s_mask;
1559
            uvsrc_x = s->mb_x * block_s                 + (mx >> lowres + 1);
1560
            uvsrc_y =   (mb_y * block_s >> field_based) + (my >> lowres + 1);
1561
        } else {
1562
            if(s->chroma_x_shift){
1563
            //Chroma422
1564
                mx = motion_x / 2;
1565
                uvsx = mx & s_mask;
1566
                uvsy = motion_y & s_mask;
1567
                uvsrc_y = src_y;
1568
                uvsrc_x = s->mb_x*block_s               + (mx >> (lowres+1));
1569
            } else {
1570
            //Chroma444
1571
                uvsx = motion_x & s_mask;
1572
                uvsy = motion_y & s_mask;
1573
                uvsrc_x = src_x;
1574
                uvsrc_y = src_y;
1575
            }
1576
        }
1577
    }
1578
1579
24814
    ptr_y  = ref_picture[0] + src_y   * linesize   + src_x;
1580
24814
    ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1581
24814
    ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1582
1583

24814
    if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s,       0) || uvsrc_y<0 ||
1584
24712
        (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1585
197
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1586
                                 linesize >> field_based, linesize >> field_based,
1587
                                 17, 17 + field_based,
1588
                                src_x, src_y << field_based, h_edge_pos,
1589
                                v_edge_pos);
1590
197
        ptr_y = s->sc.edge_emu_buffer;
1591
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1592
197
            uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1593
197
            uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1594
197
            if (s->workaround_bugs & FF_BUG_IEDGE)
1595
                vbuf -= s->uvlinesize;
1596
197
            s->vdsp.emulated_edge_mc(ubuf,  ptr_cb,
1597
                                     uvlinesize >> field_based, uvlinesize >> field_based,
1598
                                     9, 9 + field_based,
1599
                                    uvsrc_x, uvsrc_y << field_based,
1600
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1601
197
            s->vdsp.emulated_edge_mc(vbuf,  ptr_cr,
1602
                                     uvlinesize >> field_based,uvlinesize >> field_based,
1603
                                     9, 9 + field_based,
1604
                                    uvsrc_x, uvsrc_y << field_based,
1605
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1606
197
            ptr_cb = ubuf;
1607
197
            ptr_cr = vbuf;
1608
        }
1609
    }
1610
1611
    // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1612
24814
    if (bottom_field) {
1613
        dest_y  += s->linesize;
1614
        dest_cb += s->uvlinesize;
1615
        dest_cr += s->uvlinesize;
1616
    }
1617
1618
24814
    if (field_select) {
1619
        ptr_y   += s->linesize;
1620
        ptr_cb  += s->uvlinesize;
1621
        ptr_cr  += s->uvlinesize;
1622
    }
1623
1624
24814
    sx = (sx << 2) >> lowres;
1625
24814
    sy = (sy << 2) >> lowres;
1626
24814
    pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1627
1628
    if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1629
24814
        int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1630
24814
        uvsx = (uvsx << 2) >> lowres;
1631
24814
        uvsy = (uvsy << 2) >> lowres;
1632
24814
        if (hc) {
1633
24814
            pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1634
24814
            pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1635
        }
1636
    }
1637
    // FIXME h261 lowres loop filter
1638
24814
}
1639
1640
31575
static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1641
                                            uint8_t *dest_cb, uint8_t *dest_cr,
1642
                                            uint8_t **ref_picture,
1643
                                            h264_chroma_mc_func * pix_op,
1644
                                            int mx, int my)
1645
{
1646
31575
    const int lowres     = s->avctx->lowres;
1647
31575
    const int op_index   = FFMIN(lowres, 3);
1648
31575
    const int block_s    = 8 >> lowres;
1649
31575
    const int s_mask     = (2 << lowres) - 1;
1650
31575
    const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1651
31575
    const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1652
31575
    int emu = 0, src_x, src_y, sx, sy;
1653
    ptrdiff_t offset;
1654
    uint8_t *ptr;
1655
1656
31575
    if (s->quarter_sample) {
1657
        mx /= 2;
1658
        my /= 2;
1659
    }
1660
1661
    /* In case of 8X8, we construct a single chroma motion vector
1662
       with a special rounding */
1663
31575
    mx = ff_h263_round_chroma(mx);
1664
31575
    my = ff_h263_round_chroma(my);
1665
1666
31575
    sx = mx & s_mask;
1667
31575
    sy = my & s_mask;
1668
31575
    src_x = s->mb_x * block_s + (mx >> lowres + 1);
1669
31575
    src_y = s->mb_y * block_s + (my >> lowres + 1);
1670
1671
31575
    offset = src_y * s->uvlinesize + src_x;
1672
31575
    ptr = ref_picture[1] + offset;
1673
31575
    if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1674
31575
        (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1675
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1676
                                 s->uvlinesize, s->uvlinesize,
1677
                                 9, 9,
1678
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1679
144
        ptr = s->sc.edge_emu_buffer;
1680
144
        emu = 1;
1681
    }
1682
31575
    sx = (sx << 2) >> lowres;
1683
31575
    sy = (sy << 2) >> lowres;
1684
31575
    pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1685
1686
31575
    ptr = ref_picture[2] + offset;
1687
31575
    if (emu) {
1688
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1689
                                 s->uvlinesize, s->uvlinesize,
1690
                                 9, 9,
1691
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1692
144
        ptr = s->sc.edge_emu_buffer;
1693
    }
1694
31575
    pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1695
31575
}
1696
1697
/**
1698
 * motion compensation of a single macroblock
1699
 * @param s context
1700
 * @param dest_y luma destination pointer
1701
 * @param dest_cb chroma cb/u destination pointer
1702
 * @param dest_cr chroma cr/v destination pointer
1703
 * @param dir direction (0->forward, 1->backward)
1704
 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1705
 * @param pix_op halfpel motion compensation function (average or put normally)
1706
 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1707
 */
1708
56389
static inline void MPV_motion_lowres(MpegEncContext *s,
1709
                                     uint8_t *dest_y, uint8_t *dest_cb,
1710
                                     uint8_t *dest_cr,
1711
                                     int dir, uint8_t **ref_picture,
1712
                                     h264_chroma_mc_func *pix_op)
1713
{
1714
    int mx, my;
1715
    int mb_x, mb_y, i;
1716
56389
    const int lowres  = s->avctx->lowres;
1717
56389
    const int block_s = 8 >>lowres;
1718
1719
56389
    mb_x = s->mb_x;
1720
56389
    mb_y = s->mb_y;
1721
1722

56389
    switch (s->mv_type) {
1723
24814
    case MV_TYPE_16X16:
1724
24814
        mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1725
                           0, 0, 0,
1726
                           ref_picture, pix_op,
1727
                           s->mv[dir][0][0], s->mv[dir][0][1],
1728
                           2 * block_s, mb_y);
1729
24814
        break;
1730
31575
    case MV_TYPE_8X8:
1731
31575
        mx = 0;
1732
31575
        my = 0;
1733
157875
        for (i = 0; i < 4; i++) {
1734
126300
            hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1735
126300
                               s->linesize) * block_s,
1736
                               ref_picture[0], 0, 0,
1737
126300
                               (2 * mb_x + (i & 1)) * block_s,
1738
126300
                               (2 * mb_y + (i >> 1)) * block_s,
1739
                               s->width, s->height, s->linesize,
1740
126300
                               s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1741
                               block_s, block_s, pix_op,
1742
                               s->mv[dir][i][0], s->mv[dir][i][1]);
1743
1744
126300
            mx += s->mv[dir][i][0];
1745
126300
            my += s->mv[dir][i][1];
1746
        }
1747
1748
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1749
31575
            chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1750
                                     pix_op, mx, my);
1751
31575
        break;
1752
    case MV_TYPE_FIELD:
1753
        if (s->picture_structure == PICT_FRAME) {
1754
            /* top field */
1755
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1756
                               1, 0, s->field_select[dir][0],
1757
                               ref_picture, pix_op,
1758
                               s->mv[dir][0][0], s->mv[dir][0][1],
1759
                               block_s, mb_y);
1760
            /* bottom field */
1761
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1762
                               1, 1, s->field_select[dir][1],
1763
                               ref_picture, pix_op,
1764
                               s->mv[dir][1][0], s->mv[dir][1][1],
1765
                               block_s, mb_y);
1766
        } else {
1767
            if (s->picture_structure != s->field_select[dir][0] + 1 &&
1768
                s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1769
                ref_picture = s->current_picture_ptr->f->data;
1770
1771
            }
1772
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1773
                               0, 0, s->field_select[dir][0],
1774
                               ref_picture, pix_op,
1775
                               s->mv[dir][0][0],
1776
                               s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1777
            }
1778
        break;
1779
    case MV_TYPE_16X8:
1780
        for (i = 0; i < 2; i++) {
1781
            uint8_t **ref2picture;
1782
1783
            if (s->picture_structure == s->field_select[dir][i] + 1 ||
1784
                s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1785
                ref2picture = ref_picture;
1786
            } else {
1787
                ref2picture = s->current_picture_ptr->f->data;
1788
            }
1789
1790
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1791
                               0, 0, s->field_select[dir][i],
1792
                               ref2picture, pix_op,
1793
                               s->mv[dir][i][0], s->mv[dir][i][1] +
1794
                               2 * block_s * i, block_s, mb_y >> 1);
1795
1796
            dest_y  +=  2 * block_s *  s->linesize;
1797
            dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1798
            dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1799
        }
1800
        break;
1801
    case MV_TYPE_DMV:
1802
        if (s->picture_structure == PICT_FRAME) {
1803
            for (i = 0; i < 2; i++) {
1804
                int j;
1805
                for (j = 0; j < 2; j++) {
1806
                    mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1807
                                       1, j, j ^ i,
1808
                                       ref_picture, pix_op,
1809
                                       s->mv[dir][2 * i + j][0],
1810
                                       s->mv[dir][2 * i + j][1],
1811
                                       block_s, mb_y);
1812
                }
1813
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1814
            }
1815
        } else {
1816
            for (i = 0; i < 2; i++) {
1817
                mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1818
                                   0, 0, s->picture_structure != i + 1,
1819
                                   ref_picture, pix_op,
1820
                                   s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1821
                                   2 * block_s, mb_y >> 1);
1822
1823
                // after put we make avg of the same block
1824
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1825
1826
                // opposite parity is always in the same
1827
                // frame if this is second field
1828
                if (!s->first_field) {
1829
                    ref_picture = s->current_picture_ptr->f->data;
1830
                }
1831
            }
1832
        }
1833
        break;
1834
56389
    default:
1835
        av_assert2(0);
1836
    }
1837
56389
}
1838
1839
/**
1840
 * find the lowest MB row referenced in the MVs
1841
 */
1842
static int lowest_referenced_row(MpegEncContext *s, int dir)
1843
{
1844
    int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1845
    int my, off, i, mvs;
1846
1847
    if (s->picture_structure != PICT_FRAME || s->mcsel)
1848
        goto unhandled;
1849
1850
    switch (s->mv_type) {
1851
        case MV_TYPE_16X16:
1852
            mvs = 1;
1853
            break;
1854
        case MV_TYPE_16X8:
1855
            mvs = 2;
1856
            break;
1857
        case MV_TYPE_8X8:
1858
            mvs = 4;
1859
            break;
1860
        default:
1861
            goto unhandled;
1862
    }
1863
1864
    for (i = 0; i < mvs; i++) {
1865
        my = s->mv[dir][i][1];
1866
        my_max = FFMAX(my_max, my);
1867
        my_min = FFMIN(my_min, my);
1868
    }
1869
1870
    off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1871
1872
    return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1873
unhandled:
1874
    return s->mb_height-1;
1875
}
1876
1877
/* put block[] to dest[] */
1878
4698878
static inline void put_dct(MpegEncContext *s,
1879
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1880
{
1881
4698878
    s->dct_unquantize_intra(s, block, i, qscale);
1882
4698878
    s->idsp.idct_put(dest, line_size, block);
1883
4698878
}
1884
1885
/* add block[] to dest[] */
1886
19366082
static inline void add_dct(MpegEncContext *s,
1887
                           int16_t *block, int i, uint8_t *dest, int line_size)
1888
{
1889
19366082
    if (s->block_last_index[i] >= 0) {
1890
7046442
        s->idsp.idct_add(dest, line_size, block);
1891
    }
1892
19366082
}
1893
1894
21854390
static inline void add_dequant_dct(MpegEncContext *s,
1895
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1896
{
1897
21854390
    if (s->block_last_index[i] >= 0) {
1898
9051961
        s->dct_unquantize_inter(s, block, i, qscale);
1899
1900
9051961
        s->idsp.idct_add(dest, line_size, block);
1901
    }
1902
21854390
}
1903
1904
/**
1905
 * Clean dc, ac, coded_block for the current non-intra MB.
1906
 */
1907
383901
void ff_clean_intra_table_entries(MpegEncContext *s)
1908
{
1909
383901
    int wrap = s->b8_stride;
1910
383901
    int xy = s->block_index[0];
1911
1912
383901
    s->dc_val[0][xy           ] =
1913
383901
    s->dc_val[0][xy + 1       ] =
1914
383901
    s->dc_val[0][xy     + wrap] =
1915
383901
    s->dc_val[0][xy + 1 + wrap] = 1024;
1916
    /* ac pred */
1917
383901
    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(int16_t));
1918
383901
    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1919
383901
    if (s->msmpeg4_version>=3) {
1920
45701
        s->coded_block[xy           ] =
1921
45701
        s->coded_block[xy + 1       ] =
1922
45701
        s->coded_block[xy     + wrap] =
1923
45701
        s->coded_block[xy + 1 + wrap] = 0;
1924
    }
1925
    /* chroma */
1926
383901
    wrap = s->mb_stride;
1927
383901
    xy = s->mb_x + s->mb_y * wrap;
1928
383901
    s->dc_val[1][xy] =
1929
383901
    s->dc_val[2][xy] = 1024;
1930
    /* ac pred */
1931
383901
    memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1932
383901
    memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1933
1934
383901
    s->mbintra_table[xy]= 0;
1935
383901
}
1936
1937
/* generic function called after a macroblock has been parsed by the
1938
   decoder or after it has been encoded by the encoder.
1939
1940
   Important variables used:
1941
   s->mb_intra : true if intra macroblock
1942
   s->mv_dir   : motion vector direction
1943
   s->mv_type  : motion vector type
1944
   s->mv       : motion vector
1945
   s->interlaced_dct : true if interlaced dct used (mpeg2)
1946
 */
1947
static av_always_inline
1948
8873167
void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1949
                            int lowres_flag, int is_mpeg12)
1950
{
1951
8873167
    const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1952
1953
    if (CONFIG_XVMC &&
1954
        s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1955
        s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1956
        return;
1957
    }
1958
1959
8873167
    if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1960
       /* print DCT coefficients */
1961
       int i,j;
1962
       av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1963
       for(i=0; i<6; i++){
1964
           for(j=0; j<64; j++){
1965
               av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1966
                      block[i][s->idsp.idct_permutation[j]]);
1967
           }
1968
           av_log(s->avctx, AV_LOG_DEBUG, "\n");
1969
       }
1970
    }
1971
1972
8873167
    s->current_picture.qscale_table[mb_xy] = s->qscale;
1973
1974
    /* update DC predictors for P macroblocks */
1975
8873167
    if (!s->mb_intra) {
1976

7138622
        if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1977
3329974
            if(s->mbintra_table[mb_xy])
1978
306277
                ff_clean_intra_table_entries(s);
1979
        } else {
1980
3808648
            s->last_dc[0] =
1981
3808648
            s->last_dc[1] =
1982
3808648
            s->last_dc[2] = 128 << s->intra_dc_precision;
1983
        }
1984
    }
1985

1734545
    else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1986
452318
        s->mbintra_table[mb_xy]=1;
1987
1988

8873167
    if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1989

8873167
        !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1990
1926989
          s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1991
        uint8_t *dest_y, *dest_cb, *dest_cr;
1992
        int dct_linesize, dct_offset;
1993
        op_pixels_func (*op_pix)[4];
1994
        qpel_mc_func (*op_qpix)[16];
1995
7965973
        const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1996
7965973
        const int uvlinesize = s->current_picture.f->linesize[1];
1997


7965973
        const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1998
7965973
        const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1999
2000
        /* avoid copy if macroblock skipped in last frame too */
2001
        /* skip only during decoding as we might trash the buffers during encoding a bit */
2002
7965973
        if(!s->encoding){
2003
4545066
            uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2004
2005
4545066
            if (s->mb_skipped) {
2006
322949
                s->mb_skipped= 0;
2007
                av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2008
322949
                *mbskip_ptr = 1;
2009
4222117
            } else if(!s->current_picture.reference) {
2010
886263
                *mbskip_ptr = 1;
2011
            } else{
2012
3335854
                *mbskip_ptr = 0; /* not skipped */
2013
            }
2014
        }
2015
2016
7965973
        dct_linesize = linesize << s->interlaced_dct;
2017
7965973
        dct_offset   = s->interlaced_dct ? linesize : linesize * block_size;
2018
2019
7965973
        if(readable){
2020
6995046
            dest_y=  s->dest[0];
2021
6995046
            dest_cb= s->dest[1];
2022
6995046
            dest_cr= s->dest[2];
2023
        }else{
2024
970927
            dest_y = s->sc.b_scratchpad;
2025
970927
            dest_cb= s->sc.b_scratchpad+16*linesize;
2026
970927
            dest_cr= s->sc.b_scratchpad+32*linesize;
2027
        }
2028
2029
7965973
        if (!s->mb_intra) {
2030
            /* motion handling */
2031
            /* decoding or more than one mb_type (MC was already done otherwise) */
2032
6921926
            if(!s->encoding){
2033
2034
3968960
                if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2035
                    if (s->mv_dir & MV_DIR_FORWARD) {
2036
                        ff_thread_await_progress(&s->last_picture_ptr->tf,
2037
                                                 lowest_referenced_row(s, 0),
2038
                                                 0);
2039
                    }
2040
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2041
                        ff_thread_await_progress(&s->next_picture_ptr->tf,
2042
                                                 lowest_referenced_row(s, 1),
2043
                                                 0);
2044
                    }
2045
                }
2046
2047
3968960
                if(lowres_flag){
2048
41123
                    h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2049
2050
41123
                    if (s->mv_dir & MV_DIR_FORWARD) {
2051
37429
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2052
37429
                        op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2053
                    }
2054
41123
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2055
18960
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2056
                    }
2057
                }else{
2058
3927837
                    op_qpix = s->me.qpel_put;
2059

3927837
                    if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2060
3168898
                        op_pix = s->hdsp.put_pixels_tab;
2061
                    }else{
2062
758939
                        op_pix = s->hdsp.put_no_rnd_pixels_tab;
2063
                    }
2064
3927837
                    if (s->mv_dir & MV_DIR_FORWARD) {
2065
3697244
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2066
3697244
                        op_pix = s->hdsp.avg_pixels_tab;
2067
3697244
                        op_qpix= s->me.qpel_avg;
2068
                    }
2069
3927837
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2070
754504
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2071
                    }
2072
                }
2073
            }
2074
2075
            /* skip dequant / idct if we are really late ;) */
2076
6921926
            if(s->avctx->skip_idct){
2077
                if(  (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2078
                   ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2079
                   || s->avctx->skip_idct >= AVDISCARD_ALL)
2080
                    goto skip_idct;
2081
            }
2082
2083
            /* add dct residue */
2084


6921926
            if(s->encoding || !(   s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2085

1814842
                                || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2086
3526530
                add_dequant_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2087
3526530
                add_dequant_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2088
3526530
                add_dequant_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2089
3526530
                add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2090
2091
3526530
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2092
3526530
                    if (s->chroma_y_shift){
2093
3178925
                        add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2094
3178925
                        add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2095
                    }else{
2096
347605
                        dct_linesize >>= 1;
2097
347605
                        dct_offset >>=1;
2098
347605
                        add_dequant_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2099
347605
                        add_dequant_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2100
347605
                        add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2101
347605
                        add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2102
                    }
2103
                }
2104

3395396
            } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2105
3205247
                add_dct(s, block[0], 0, dest_y                          , dct_linesize);
2106
3205247
                add_dct(s, block[1], 1, dest_y              + block_size, dct_linesize);
2107
3205247
                add_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize);
2108
3205247
                add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2109
2110
3205247
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2111
3205247
                    if(s->chroma_y_shift){//Chroma420
2112
3137947
                        add_dct(s, block[4], 4, dest_cb, uvlinesize);
2113
3137947
                        add_dct(s, block[5], 5, dest_cr, uvlinesize);
2114
                    }else{
2115
                        //chroma422
2116
67300
                        dct_linesize = uvlinesize << s->interlaced_dct;
2117
67300
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2118
2119
67300
                        add_dct(s, block[4], 4, dest_cb, dct_linesize);
2120
67300
                        add_dct(s, block[5], 5, dest_cr, dct_linesize);
2121
67300
                        add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2122
67300
                        add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2123
67300
                        if(!s->chroma_x_shift){//Chroma444
2124
                            add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2125
                            add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2126
                            add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2127
                            add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2128
                        }
2129
                    }
2130
                }//fi gray
2131
            }
2132
            else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2133
190149
                ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2134
            }
2135
        } else {
2136
            /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2137
               TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2138
1044047
            if (s->avctx->bits_per_raw_sample > 8){
2139
                const int act_block_size = block_size * 2;
2140
2141
                if(s->dpcm_direction == 0) {
2142
                    s->idsp.idct_put(dest_y,                           dct_linesize, (int16_t*)(*s->block32)[0]);
2143
                    s->idsp.idct_put(dest_y              + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2144
                    s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, (int16_t*)(*s->block32)[2]);
2145
                    s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2146
2147
                    dct_linesize = uvlinesize << s->interlaced_dct;
2148
                    dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2149
2150
                    s->idsp.idct_put(dest_cb,              dct_linesize, (int16_t*)(*s->block32)[4]);
2151
                    s->idsp.idct_put(dest_cr,              dct_linesize, (int16_t*)(*s->block32)[5]);
2152
                    s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2153
                    s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2154
                    if(!s->chroma_x_shift){//Chroma444
2155
                        s->idsp.idct_put(dest_cb + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[8]);
2156
                        s->idsp.idct_put(dest_cr + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[9]);
2157
                        s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2158
                        s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2159
                    }
2160
                } else if(s->dpcm_direction == 1) {
2161
                    int i, w, h;
2162
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2163
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2164
                    for(i = 0; i < 3; i++) {
2165
                        int idx = 0;
2166
                        int vsub = i ? s->chroma_y_shift : 0;
2167
                        int hsub = i ? s->chroma_x_shift : 0;
2168
                        for(h = 0; h < (16 >> vsub); h++){
2169
                            for(w = 0; w < (16 >> hsub); w++)
2170
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2171
                            dest_pcm[i] += linesize[i] / 2;
2172
                        }
2173
                    }
2174
                } else if(s->dpcm_direction == -1) {
2175
                    int i, w, h;
2176
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2177
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2178
                    for(i = 0; i < 3; i++) {
2179
                        int idx = 0;
2180
                        int vsub = i ? s->chroma_y_shift : 0;
2181
                        int hsub = i ? s->chroma_x_shift : 0;
2182
                        dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2183
                        for(h = (16 >> vsub)-1; h >= 1; h--){
2184
                            for(w = (16 >> hsub)-1; w >= 1; w--)
2185
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2186
                            dest_pcm[i] -= linesize[i] / 2;
2187
                        }
2188
                    }
2189
                }
2190
            }
2191
            /* dct only in intra block */
2192

1044047
            else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2193
770143
                put_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2194
770143
                put_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2195
770143
                put_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2196
770143
                put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2197
2198
770143
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2199
770143
                    if(s->chroma_y_shift){
2200
731133
                        put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2201
731133
                        put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2202
                    }else{
2203
39010
                        dct_offset >>=1;
2204
39010
                        dct_linesize >>=1;
2205
39010
                        put_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2206
39010
                        put_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2207
39010
                        put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2208
39010
                        put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2209
                    }
2210
                }
2211
            }else{
2212
273904
                s->idsp.idct_put(dest_y,                           dct_linesize, block[0]);
2213
273904
                s->idsp.idct_put(dest_y              + block_size, dct_linesize, block[1]);
2214
273904
                s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, block[2]);
2215
273904
                s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2216
2217
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2218
273904
                    if(s->chroma_y_shift){
2219
220094
                        s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2220
220094
                        s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2221
                    }else{
2222
2223
53810
                        dct_linesize = uvlinesize << s->interlaced_dct;
2224
53810
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2225
2226
53810
                        s->idsp.idct_put(dest_cb,              dct_linesize, block[4]);
2227
53810
                        s->idsp.idct_put(dest_cr,              dct_linesize, block[5]);
2228
53810
                        s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2229
53810
                        s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2230
53810
                        if(!s->chroma_x_shift){//Chroma444
2231
                            s->idsp.idct_put(dest_cb + block_size,              dct_linesize, block[8]);
2232
                            s->idsp.idct_put(dest_cr + block_size,              dct_linesize, block[9]);
2233
                            s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2234
                            s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2235
                        }
2236
                    }
2237
                }//gray
2238
            }
2239
        }
2240
53810
skip_idct:
2241
7965973
        if(!readable){
2242
970927
            s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y ,   linesize,16);
2243
            if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2244
970927
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2245
970927
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2246
            }
2247
        }
2248
    }
2249
}
2250
2251
8873167
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2252
{
2253
#if !CONFIG_SMALL
2254
8873167
    if(s->out_format == FMT_MPEG1) {
2255
3627291
        if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2256
3627291
        else                 mpv_reconstruct_mb_internal(s, block, 0, 1);
2257
    } else
2258
#endif
2259
5245876
    if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2260
5202376
    else                  mpv_reconstruct_mb_internal(s, block, 0, 0);
2261
8873167
}
2262
2263
166760
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2264
{
2265
166760
    ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2266
166760
                       s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2267
                       s->first_field, s->low_delay);
2268
166760
}
2269
2270
836832
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2271
836832
    const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2272
836832
    const int uvlinesize = s->current_picture.f->linesize[1];
2273
836832
    const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2274
836832
    const int height_of_mb = 4 - s->avctx->lowres;
2275
2276
836832
    s->block_index[0]= s->b8_stride*(s->mb_y*2    ) - 2 + s->mb_x*2;
2277
836832
    s->block_index[1]= s->b8_stride*(s->mb_y*2    ) - 1 + s->mb_x*2;
2278
836832
    s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2279
836832
    s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2280
836832
    s->block_index[4]= s->mb_stride*(s->mb_y + 1)                + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2281
836832
    s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2282
    //block_index is not used by mpeg2, so it is not affected by chroma_format
2283
2284
836832
    s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) <<  width_of_mb);
2285
836832
    s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2286
836832
    s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2287
2288

836832
    if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2289
    {
2290
836832
        if(s->picture_structure==PICT_FRAME){
2291
806052
        s->dest[0] += s->mb_y *   linesize << height_of_mb;
2292
806052
        s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2293
806052
        s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2294
        }else{
2295
30780
            s->dest[0] += (s->mb_y>>1) *   linesize << height_of_mb;
2296
30780
            s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2297
30780
            s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2298
            av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2299
        }
2300
    }
2301
836832
}
2302
2303
79
void ff_mpeg_flush(AVCodecContext *avctx){
2304
    int i;
2305
79
    MpegEncContext *s = avctx->priv_data;
2306
2307

79
    if (!s || !s->picture)
2308
        return;
2309
2310
2923
    for (i = 0; i < MAX_PICTURE_COUNT; i++)
2311
2844
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2312
79
    s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2313
2314
79
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2315
79
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2316
79
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2317
2318
79
    s->mb_x= s->mb_y= 0;
2319
79
    s->closed_gop= 0;
2320
2321
79
    s->parse_context.state= -1;
2322
79
    s->parse_context.frame_start_found= 0;
2323
79
    s->parse_context.overread= 0;
2324
79
    s->parse_context.overread_index= 0;
2325
79
    s->parse_context.index= 0;
2326
79
    s->parse_context.last_index= 0;
2327
79
    s->bitstream_buffer_size=0;
2328
79
    s->pp_time=0;
2329
}
2330
2331
/**
2332
 * set qscale and update qscale dependent variables.
2333
 */
2334
1444180
void ff_set_qscale(MpegEncContext * s, int qscale)
2335
{
2336
1444180
    if (qscale < 1)
2337
        qscale = 1;
2338
1444180
    else if (qscale > 31)
2339
        qscale = 31;
2340
2341
1444180
    s->qscale = qscale;
2342
1444180
    s->chroma_qscale= s->chroma_qscale_table[qscale];
2343
2344
1444180
    s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2345
1444180
    s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2346
1444180
}
2347
2348
156992
void ff_mpv_report_decode_progress(MpegEncContext *s)
2349
{
2350

156992
    if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2351
116532
        ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
2352
156992
}